equal.js

const {prototype: {toString}, keys} = Object

const a = {
  name: 'JetLu',
  other: {age: 12, gender: 0, alias: 2}
}

const b = {
  name: 'JetLu',
  other: {age: 12, gender: 0, alias: 2}
}

console.log(equal(a, b))

function isObject(v) {
  return toString.call(v).includes('Object')
}

function isArray(v) {
  return toString.call(v).includes('Array')
}

function sameType(a, b) {
  return toString.call(a) === toString.call(b)
}

function equal(a, b) {
  const queue = [[a, b]]
  while(queue.length) {
    const [m, n] = queue.pop()
    if (!sameType(m, n)) return
    if (isObject(m) && keys(m).length === keys(n).length) {
      for (const k in m) {
        if (!sameType(m[k], n[k])) return
        if (isObject(m[k])) queue.push([m[k], n[k]])
        else if (isArray(m[k])) queue.push([m[k], n[k]])
        else if (m[k] !== n[k]) return
      }
    } else if (isArray(m) && m.length === n.length) {
      for (let k = 0; k < m.length; k++) {
        if (!sameType(m[k], n[k])) return
        if (isObject(m[k])) queue.push([m[k], n[k]])
        else if (isArray(m[k])) queue.push([m[k], n[k]])
        else if (m[k] !== n[k]) return
      }
    } else if (m !== n) return
  }

  return true
}

厉害啊，飞哥

也就还行

飞哥可以的